We are seeing issues when users submit a Drupal Webform and accidentally click the submit button twice, duplicate records are being recorded in CiviCRM. This goes for creating 2 of the same contact or assigning 2 event registration to the same contact.
This was never an issue before but seems to have crept in after we upgraded to CiviCRM 5.0.2. We are now on CiviCRM 5.5.3
Using webform_civicrm 7.x-4.21
Any guidance would be appreciated